Yamaha_DG60-112 电路图.pdf

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1、GA 011476 19990901-65000 SERVICE MANUAL HAMAMATSU, JAPAN 1.615K-455 Printed in Japan 99.08 GUITAR AMPLIFIER CONTENTS SPECIFICATIONS 3 PANEL LAYOUT 4 CIRCUIT BOARD LAYOUT 5 BLOCK DIAGRAM 6 DISASSEMBLY PROCEDURE 6 LSI PIN DESCRIPTION 8 IC BLOCK DIAGRAM 10 SELF CHECK AND INSPECTIONS 12 PARTS LIST OVERA

2、LL CIRCUIT DIAGRAM CIRCUIT BOARDS RadioFans.CN 收音机爱 好者资料库 DG60-112 2 WARNING: CHEMICAL CONTENT NOTICE! The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (where applicable) components may also contain traces of chemicals found by

3、the California Health and Welfare Agency (and possibly other entities) to cause cancer and/or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO EVER! Avoid prolonged, unprotected contact between solder and

4、your skin! When soldering, do not inhale solder fumes or expose eyes to solder/flux vapor! If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food. IMPORTANT NOTICE This manual has been provided for the use of authorized Yam

5、aha Retailers and their service personnel. It has been assumed that basic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood by the users, and have therefore not been restated. WARNING:Failure to follow appropriate service and safety

6、procedures when servicing this product may result in personal injury, destruction of expensive components and failure of the product to perform as specified. For these reasons, we advise all Yamaha product owners that all service required should be performed by an authorized Yamaha Retailer or the a

7、ppointed service representative. IMPORTANT:This presentation or sale of this manual to any individual or firm does not constitute authorization, certification, recognition of any applicable technical capabilities, or establish a principal-agent relationship of any form. The data provided is belived

8、to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and service departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable and changes in specification are subject to change without notice or obligati

9、on to retrofit. Should any discrepancy appear to exist, please contact the distributors Service Division. WARNING:Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by grounding yourself to the ground bus in the unit. (Heavy gauge blac

10、k wires connect to this bus.) IMPORTANT:Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit. WARNING Components having special characteristics are marked and must be replaced with parts having specification equal to those originally install

11、ed. IMPORTANT NOTICE FOR THE UNITED KINGDOM Connecting the Plug and Cord WARNING:THIS APPARATUS MUST BE EARTHED IMPORTANT.The wires in this main lead are coloured in accordance with the following code: GREEN-AND-YELLOW:EARTH BLUE:NEUTRAL BROWN:LIVE As the colours of the wires in the main lead of thi

12、s apparatus may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows: The GREEN-and-YELLOW wire must be connected to the terminal in the plug that is marked with the letter E or the safety earth symbol (or colored GREEN or GREEN-and-YELLOW). The BLUE w

13、ire must be connected to the terminal that is marked with the letter N (or coloured BLACK). The BROWN wire must be connected to the terminal that is marked with the letter L (or coloured RED). This applies only to products diatributed by Yamaha Kemble Music (U.K.) Ltd. RadioFans.CN 收音机爱 好者资料库 SPECIF

14、ICATIONS DG60-112 3 Digital Section Complete Digital Signal Processing Amplification Type: Internal 8 Channel Preset Digital Reverb (SPRING) Speaker Simulator (LINE OUT) Analog Section 60 W Solid State Power Amp 30 cm Speaker (EMINENCE) x 1 Controller/Switch Front Panel:GAIN, MASTER, TREBLE, HIGH MI

15、D, LOW MID, BASS, PRESENCE, REVERB, AMP select switch, for each channel (A/B), Channel select switch (A/B) Rear Panel: EFFECT BLEND, SP MUTE switch, for each channel (A/B), EFFECT SEND/RETURN level switch Indicator Peak Level Display LED (Red) Connection Jacks INPUT HIGH/LOW, EFFECT SEND/RETURN, LIN

16、E OUT/PHONES, FOOT SW (CH SELECT, REVERB): All Standard Phone Mono Jack A/D Converter20 bit + 3 bit floating D/A Converter20 bit Sampling Frequency48 kHz Input Level/Impedance INPUT HIGH:20 dBm (THRU)/1 M INPUT LOW:10 dBm (THRU)/1 M EFFECT RETURN: 0 dBm/120 k Output Level/Impedance SPEAKER:60 W RMS/

17、8 LINE OUT:+2 dBm/47 EFFECT SEND:2 dBm/1 k Power Requirements U.S. and Canadian models : 120 V, 60 Hz General model :230 V, 50 Hz Power Consumption 70 W Dimensions (W x H x D) 540 x 504 x 276 mm (21.3” x 19.8” x 10.9”) Weight 18.0 kg (39 lbs 11 oz) RadioFans.CN 收音机爱 好者资料库 DG60-112 4 PANEL LAYOUT Inp

18、ut Jack (INPUT HIGH, LOW) Peak Indicator Channel Select Switch Channel Indicator Amp Select Switch Gain Volume (GAIN) Master Volume (MASTER) Tone Controls (TREBLE, HIGH MID, LOW MID, BASS, PRESENCE) Reverb Volume (REVERB) Power Switch (POWER) Foot Switch (FOOT SW) Speaker Mute Switch (SP MUTE) Line

19、Out/Head Phone Jack (LINE OUT/PHONES) Effect Send/Return Level Switch (0 dB/-20 dB) Effect Send Jack (EFFECT SEND) Effect Return Jack (RETURN) Blend Knob (BLEND) Front Panel Rear Panel DM DM SW SW DM MAIN (Bottom) (Top) 1/5 MAIN 1/5 MAIN 1/5 MAIN 2/5MAIN 3/5MAIN 4/5MAIN 5/5 A-CH A-CH Power transform

20、er AC cord Top view Front view Rear view Side view DG60-112 5 CIRCUIT BOARD LAYOUT DM SW MAIN INPUT HIGH INPUT LOW PEAK ACHBCH IC201 JK202 JK201 IC202IC1 IC2 97 IC201 LD201 8481 3 12 AMP SELECT (SW401) GAIN (VR302) MASTER (VR303) TREBLE (VR304) HIGH MID (VR305) LOW MID (VR306) BASS (VR307) PRESENCE

21、(VR308) REVERB (VR309) AMP SELECT (SW402) GAIN (VR202) MASTER (VR203) TREBLE (VR204) HIGH MID (VR205) LOW MID (VR206) BASS (VR207) PRESENCE (VR208) REVERB (VR209) 1415111524121415111524 13 808583 313 82 31 4721 21 6731 5267 5727 MUTE IC4 MUTE MUTE MUTE BLEND IC6 VR1 75 IC6 JK4 SW3 SW2 98 TEST SP MUT

22、E BUF (IC21) 9795,966,7 9,122,5 47 1114 JK5 SW202 BCH LD402LD401 ACH 31 EFECTDRY MUTE CH SELECT A/B REVERB ON/OFF +B/-B +15V/-15V +5V MUTE IC5 31 IC5 3 +R -R A/D -L R D/A L +L 4 67 4 5 6 AK4520A-VF-E2 ADC/DAC DSP3 YSS228E-F (IC14) MPX (IC19) MPX (IC20) CPU HD6473042FP16 (IC17) DSP2 YSS228E-F (IC15)

23、DRAM 4M (IC16) (IC3) LINE OUT/HEAD PHONES SEND PUSH SW. RETURN SP 12 8 AC POWER SW 0/-20 dBm JK3 JK2 SW1 JK1 BT202 D201,202 POWER AMP BT203 SW201 PUSH SW. CH A/B KEC-54180 POWER SUPPLY A-CH BLOCK DIAGRAMDISASSEMBLY PROCEDURE DG60-112 6 30: Oval Head Screw 5.0X35 MFC2BL (VP104600) 60: Hexagonal Nut 4

24、.0 MFZN2Y (03760900) 70: Oval Head Yapping Screw-1 4.0X30 MFC2BL (EN240090) (Fig. 1) 70 120 30 60 Pre-main unit Back board (U) Speaker Speaker wire Speaker 1.Pre-Main Unit 1-1Remove the four (4) screws marked 70. The back board (U) can then be removed. (Fig. 1) 1-2Remove the speaker wires and the sc

25、rew marked 120. (Fig. 1) 1-3Remove the four (4) screws marked 30. The pre-main unit can then be removed by sliding it backward. (Fig. 1) 2.Speaker 2-1Remove the four (4) screws marked 70. The back board (U) can then be removed. (Fig. 1) 2-2Remove the four (4) hexagonal nuts marked 60. The speaker ca

26、n then be removed. (Fig. 1) 3.DM Circuit Board 3-1Remove the pre-main unit. (See Procedure 1.) 3-2Remove the BLEND knob marked 90A, the four (4) hexagonal nuts marked 130A, the hexagonal nut marked 190 and the hexagonal nut marked 210. 3-3Remove the five (5) screws marked 80A. The DM circuit board c

27、an then be removed. (Fig. 2) 3-4Remove the button marked 100A form the DM circuit board. (Fig. 2) SW 2/53/5 Power transformer 80: Bind Head Tapping Screw-B 3.0X8 MFZN2BL (EP600190) 130: Hexagonal Nut 9.0 12X2 MFNI33 (LX200060) 190: Hexagonal Nut 12.0 14X2 MFC2BL (VD794100) 210: Hexagonal Nut 9.0 11X

28、2 MFZN2BL (VJ388000) 270: Bind Head Tapping Screw-C A4.0X8 MFZN2BL (VC688900) 290: Bind Head Screw SP 3.0X12 MFZN2Y (VB763800) (Fig. 2) 210 80A 90A 130A130A 290A 100A190 290B290C290D 270X4 80B 90C, B MAINMAIN MAIN 5/5 MAIN 4/5 90B, A90D, A100B110130B 80B DM MAIN 1/5 A-CH DG60-112 7 4.MAIN (1/5-5/5),

29、 A-CH and SW Circuit Boards 4-1Remove the pre-main unit. (See Procedure 1.) 4-2Each circuit board can then be removed in its manner as below. (Fig. 2) MAIN 1/5 Circuit Board Remove the eight (8) knobs marked 90B, the eight (8) hexagonal nuts marked A, the two (2) hexagonal nuts marked 130B and the f

30、ive (5) screws marked 80B. Remove the knob marked 100B and the knob marked 110 from the MAIN 1/5 circuit board. (Fig. 2) MAIN 2/5 Circuit Board Remove the screw marked 290A. (Fig. 2) MAIN 3/5 Circuit Board Remove the screw marked 290B. (Fig. 2) MAIN 4/5 Circuit Board Remove the screw marked 290C. (F

31、ig. 2) MAIN 5/5 Circuit Board Remove the screw marked 290D. (Fig. 2) A-CH Circuit Board Remove the eight (8) knobs marked 90C and the eight (8) hexagonal nuts marked B. (Fig. 2) SW Circuit Board Remove the two (2) knobs marked 90D and the two (2) hexagonal nuts marked C. (Fig. 2) 5.Power Transformer

32、 5-1Remove the pre-main unit. (See Procedure 1.) 5-2Remove the four (4) screws marked 270. The power transformer can then be removed. (Fig. 2) DG60-112 8 LSI PIN DESCRIPTION PIN NO. I/OFUNCTIONNAME PIN NO. I/OFUNCTIONNAME 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

33、30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 PA6 PA7 VCC PB0 PB1 PB2 PB3 PB4 PB5 PB6/DREQ0 PB7/DREQ1 /RESO VSS P90/TXD0 P91/TXD1 P92/RXD0 P93/RXD1 P94/SCK0 P95/SCK1 P40/D0 P41/D1 P42/D2 P43/D3 VSS P44/D4 P45/D5 P46/D6 P47/D7 D8 D9 D10 D11 D12 D13 D14 D15 VCC A0 A1 A2 A3 A4 A5 A6 A7

34、 VSS A8 A9 A10 A11 O O I I I I I I I I O O O I I O I I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O O O O O O O O O O O O O Port A Address bus Power supply Port B Reset Ground Transmit data (MIDI OUT) KSN-ACK Receive data (MIDI IN) KSN-RX Port 9 Port 9 (Ground) Data bus Power supply

35、 Address bus (Ground) 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 A12 A13 A14 A15 A16 A17 A18 A19 VSS P60/WAIT P61/BREQ P62/BACK /STBY /RES NMI VSS EXTAL XTAL VCC /AS /RD /HWR /LWR MD0 MD1 MD2

36、AVCC VREF P70/AN0 P71/AN1 P72/AN2 P73/AN3 P74/AN4 P75/AN5 P76/AN6 P77/AN7 AVSS P80 P81/CS3 P82/CS2 P83/CS1 P84/CS0 VSS PA0 PA1 PA2 PA3 PA4 PA5 O O O O O O O O I I I O I I I I O O O O O I I I I I I I I I I I I O O O O O I I I O O O Address bus Ground Port 6 out Stand-by mode signal Reset Non-maskable

37、 interrupt Ground Clock Clock Power supply Address strobe Read strobe Write strobe (High) Write strobe (Low) Mode select Analog power supply Reference voltage Analog data input (EQ) Analog input (EQ) Analog data input Analog input (CS) Analog data input (BEND) Analog input (MOD) Analog input (FC) An

38、alog input (BAT) Analog ground Port 8 Chip select Ground Port A HD6433042SC10FP (XW325100) CPUDM: IC17 PIN NO. I/OFUNCTIONNAME PIN NO. I/OFUNCTIONNAME 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53

39、 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 VSS XI XO VDD /SYNCI /SYNCO CKI CKO CKSL VSS MCKS /SSYNC /IC /TEST BTYP /IRQ TRIG VDD VSS /CS /DS R/W CA7 CA6 CA5 CA4 CA3 CA2 CA1 CA0/CD15 CD14 CD13 CD12 CD11 CD10 CD09 CD08 CD07 CD06 VSS VDD CD05 CD04 CD03 CD02 CD01 C

40、D00 /DTACK SI0 SI1 SI2 SI3 SI4 SI5 SI6 SI7 VSS VDD SO0 SO1 SO2 SO3 SO4 SO5 SO6 SO7 DB00 DB01 DB02 DB03 DB04 DB05 DB06 DB07 DB08 DB09 DB10 DB11 DB12 VDD I I O I O I I I I I I O I/O I I I I I I I I I I I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O O I I I I I I I I O O O O O O O O I/

41、O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O Ground System master clock input (60 M or30 MHz) System master clock input (60 M or30 MHz) Power supply System synch. input System synch. output System clock input (30 MHz) System clock output (30 MHz) System master clock select (0:60 M,1:30 MHz) Gro

42、und Master clock for serial I/O(128 xFs) Synch. signal for serial I/O Initial clear Test mode setting CPU data bus 8/16 bit select(0:8,1:16) Interrupt request Trigger signal Power supply Ground Chip select Data strobe Read/Write select CPU address bus CPU address/data bus CPU data bus Ground Power s

43、upply CPU data bus DTACK signal output Serial data input Ground Power supply Serial data output Parallel data bus Power supply 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128

44、129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 VSS DB13 DB14 DB15 DB16 DB17 DB18 DB19 DB20 DB21 DB22 DB23 DB24 DB25 DB26 DB27 DB28 DB29 DB30 DB31 TIMO/DBOE VSS VDD DA00 DA01 DA02 DA03 DA04 DA05 DA06 DA07 DA08 DA09 DA10

45、DA11 DA12 DA13 DA14 DA15 VSS VDD DA16 DA17 DA18 DA19 DA20 DA21 DA22 DA23 DA24 DA25 DA26 DA27 DA28 DA29 DA30 DA31 VDD VSS A00 A01 A02 A03 A04 A05 A06 A07 A08 A09 A10 A11 A12 A13 A14 A15/RAS A16/CAS A17/CE /WE /OE VDD I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O

46、I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O O O O O O O O O O O O O O O O O O O O O Ground Parallel data bus Timing signal/Parallel data bus control Ground Power supply External memory data bus Ground Power supply Ex

47、ternal memory data bus Power supply Ground External memory address bus External memory address bus/Row address strobe External memory address bus/Column address strobe External memory address bus/Chip enable External memory write enable External memory output enable Power supply YSS228E-F (XQ962D00)

48、 DSP3 (Digital Signal Processor)DM: IC14, 15 DG60-112 9 DG60-112 10 IC BLOCK DIAGRAM TCHCU04AF-TP1 (XD660A00) Hex Inverter SN74HC08NSR (XD831A00) Quad 2 Input AND 1 2 3 1A 1Y 42A 52B 62Y 7VSS 1B 14 13 12 VDD 4A 114Y 103B 93A 83Y 4B 1 2 3 A QAQA 4QBQB 5QCQC 6QDQD 7GND BB 14 13 12 VCC QGQG 11QFQF 10QE

49、QE 9CLEARCLEAR 8CLOCK QH CK QH 1 2 3 1A 1Y 42A 52B 62Y 7GND 1B 14 13 12 Vcc 4A 114Y 103B 93A 83Y 4B TC74VHC32F (XR337A00) Quad 2 Input OR TC74HC157AF-TP1 (XH603A00) Quad 2 to 1 Multiplexer TC74HC175AF -TP1 (XD658A00) Quad D-Type Flip-Flop TC74HC164AF (XQ967A00) 8-Bit Shift Register QCL QD CK 1 2 3 4 5 6 7 1A 1Y 2A 2Y 3A 3Y Vss 14 13 12 11 10 9 8 VDD 6A 6Y 5A 5Y 4A 4Y QCL QD CK QCL QD CK QCL QD CK 1 2 3 4 5 6 7 CL 1Q 1Q 1D 2D 2Q 2Q 16 15 14 13 12 11 10 VDD 4Q 4Q 4D 3D 3Q 3Q 8 Vss 9 CK OUTPUTS OUTPUTS SIRIAL INPUT A A 1 2 3 4 5 6 7 SELECT 1A1A 1B1B 1Y1Y 2A2A 2B